Proceedings Of The Third Biennial Conference Of Research On The Colorado Plateau Transactions And Proceedings Series Nps Nrnau Nrtp 97 12 U S Department Of The Interior 1997
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Proceedings Of The Third Biennial Conference Of Research On The Colorado Plateau Transactions And Proceedings Series Nps Nrnau Nrtp 97 12 U S Department Of The Interior 1997
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Author : United States. National Park Service
language : en
Publisher:
Release Date : 1998*
Proceedings Of The Third Biennial Conference Of Research On The Colorado Plateau Transactions And Proceedings Series Nps Nrnau Nrtp 97 12 U S Department Of The Interior 1997 written by United States. National Park Service and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998* with categories.
The Colorado Plateau Iv
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Author : Charles Van Riper
language : en
Publisher: University of Arizona Press
Release Date : 2010
The Colorado Plateau Iv written by Charles Van Riper and has been published by University of Arizona Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Nature categories.
Roughly centered on the Four Corners region of the southwestern United States, the Colorado Plateau covers some 130,000 square miles of sparsely vegetated plateaus, mesas, canyons, arches, and cliffs in Arizona, Utah, Colorado, and New Mexico. With elevations ranging from 3,000 to 14,000 feet, the natural systems found within the plateau are dramatically varied, from desert to alpine conditions. This book focuses on the integration of science and resource management issues in this unique and highly varied environment. Broken into three subsections, this volume addresses conservation biology, biophysical resources, and inventory and monitoring concerns. The chapters range in content, addressing conservation issuesÑpast, present, and futureÑon the Colorado Plateau, measurement of human impacts on resources, grazing and wildland-urban interfaces, and tools and methods for monitoring habitats and species. An informative read for people interested in the conservation and natural history of the region, the book will also serve as a valuable reference for those people engaged in the management of cultural and biological resources of the Colorado Plateau, as well as scientists interested in methods and tools for land and resource management throughout the West.
Monthly Catalog Of United States Government Publications
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Author :
language : en
Publisher:
Release Date : 1998-07
Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-07 with Government publications categories.
Research Note Rmrs
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Author :
language : en
Publisher:
Release Date : 1998
Research Note Rmrs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Forests and forestry categories.
Grand Canyon National Park N P Fire Management Plan
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Author :
language : en
Publisher:
Release Date : 2009
Grand Canyon National Park N P Fire Management Plan written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Managing Gambel Oak In Southwestern Ponderosa Pine Forests
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Author : Scott R. Abella
language : en
Publisher:
Release Date : 2008
Managing Gambel Oak In Southwestern Ponderosa Pine Forests written by Scott R. Abella and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Forest management categories.
Gambel oak (Quercus gambelii) is a key deciduous species in southwestern ponderosa pine (Pinus ponderosa) forests and is important for wildlife habitat, soil processes, and human values. This report (1) summarizes Gambel oak's biological characteristics and importance in ponderosa pine forests, (2) synthesizes literature on changes in tree densities and fire frequencies since Euro-American settlement in pine-oak forests, (3) suggests management prescriptions for accomplishing various oak management objectives (for example, increasing diameter growth or acorn production), and (4) provides an appendix containing 203 Gambel oak literature citations organized by subject. Nine studies that reconstructed Gambel oak density changes since settlement in the late 1800s reported that densities of small oaks have escalated, with increases ranging from 4- to more than 63-fold. A possible argument for passive oak management, that overall oak abundance has decreased, is not supported by published research. Manipulating oak growth forms is one of the main means for managing oak and ecosystem components affected by oak. Published research has classified variants of three basic oak growth forms: shrubby thickets of small stems, pole-sized clumps, and large trees. Burning and cutting constitute major prescriptions for manipulating these growth forms, whereas pine thinning has most consistently increased oak diameter growth for promoting large oaks. Because of their high ecological value, large, old oaks should be retained in any management prescription. Sufficient research has been published on which to base some oak management prescriptions, but additional research on poorly understood aspects of oak's ecology is needed to refine and improve oak management.
Vegetation Dynamics On The Mountains And Plateaus Of The American Southwest
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Author : John Vankat
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-05-27
Vegetation Dynamics On The Mountains And Plateaus Of The American Southwest written by John Vankat and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-27 with Science categories.
The book provides information essential for anyone interested in the ecology of the American Southwest, including land managers, environmental planners, conservationists, ecologists and students. It is unique in its coverage of the hows and whys of dynamics (changes) in the major types of vegetation occurring on southwestern mountains and plateaus. It explains the drivers and processes of change, describes historical changes and provides conceptual models that diagrammatically illustrate past, present, and potential future changes. All major types of vegetation are covered: spruce-fir, mixed conifer, and ponderosa pine forests, pinyon-juniper vegetation, subalpine-montane grassland, and Gambel oak and interior chaparral shrublands. The focus is on vegetation that is relatively undisturbed, i.e., in natural and near-natural condition, and how it responds to natural disturbances such as fire and drought, as well as to anthropogenic disturbances such as fire exclusion and invasive species
Aridland Springs In North America
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Author : Lawrence E. Stevens
language : en
Publisher: University of Arizona Press
Release Date : 2008
Aridland Springs In North America written by Lawrence E. Stevens and has been published by University of Arizona Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Nature categories.
A collection of articles on the ecology of North American desert springs, by authors from the fields of biology, botany, ichthyology, conservation, geology and law; and covering both the special traits of springs and the ways in which they might be managed in order to survive.
Learning From The Land
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Author : Linda M. Hill
language : en
Publisher:
Release Date : 1998
Learning From The Land written by Linda M. Hill and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Grand Staircase-Escalante National Monument (Utah) categories.
The Controlled Flood In Grand Canyon
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Author : Robert H. Webb
language : en
Publisher: American Geophysical Union
Release Date : 1999-01-26
The Controlled Flood In Grand Canyon written by Robert H. Webb and has been published by American Geophysical Union this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-26 with Science categories.
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 110. The natural flow of almost every river in the United States has been modified to meet various socioeconomic goals—navigation, irrigation, power generation and flood control. The success of the dams and reservoirs built to achieve these goals has been accompanied by changes in the status of riverine resources downstream, a cause of growing environmental and ecological concern. For example, before Glen Canyon Dam was completed, the Colorado River transported large quantities of sediment in floods as large as 8500 m3/s. After the dam was closed in 1963, dam releases typically were less than the powerplant capacity of 890 m3/s and exhibited large daily flow fluctuations. The river carried little sediment. The daily fluctuations in flow eroded sand bars, and the smaller, controlled flow did not redeposit them. The clear, cold water resulted in increased aquatic productivity such that rainbow trout and other nonnative fishes thrived while most native species were lost or endangered.